As of previous close (2026-09-11) · OPRA historical data
Spot $161.76 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.93
153k P / 165k C
Put/Call (Volume)
0.59
11k P / 19k C that session
30d ATM IV
70%
annualized implied move
Call wall
$200
14k contracts
Put wall
$150
14k contracts
Tail hedging
0.5×
deep-OTM puts vs calls
All expiries combined. Amber lines mark the call and put walls; the dashed line is spot.
At-the-money implied volatility per expiry.
IV by strike — expiry 2026-10-09. A steep left side = expensive downside protection.
Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.
| Expiry | Call OI | Put OI | P/C | Volume that session |
|---|---|---|---|---|
| 2026-09-18 | 33k | 23k | 0.69 | 11k |
| 2026-09-25 | 6k | 6k | 0.97 | 2k |
| 2026-10-02 | 3k | 6k | 1.87 | 640 |
| 2026-10-09 | 2k | 4k | 1.92 | 580 |
| 2026-10-16 | 15k | 17k | 1.13 | 2k |
| 2026-10-23 | 451 | 1k | 2.28 | 236 |
| 2026-10-30 | 44 | 61 | 1.39 | 119 |
| 2026-11-20 | 21k | 17k | 0.82 | 2k |
| 2026-12-18 | 7k | 9k | 1.38 | 559 |
| 2027-01-15 | 33k | 28k | 0.85 | 927 |
| 2027-02-19 | 2k | 3k | 1.41 | 153 |
| 2027-03-19 | 4k | 8k | 1.78 | 158 |
| 2027-06-17 | 3k | 5k | 1.93 | 1k |
| 2027-07-16 | 2k | 8k | 3.35 | 172 |
| 2027-10-15 | 2k | 875 | 0.57 | 99 |
| 2028-01-21 | 12k | 7k | 0.64 | 285 |
Source: Cboe end-of-session option chains, summarized after each US market close and published from the following trading day — OPRA historical data. Under the OPRA plan options data becomes historical, and freely publishable, at the opening of the next trading session; data from the session in progress is never displayed or served here. Open interest is exchange-reported once a day. Research, not investment advice.